Find me an airline ticket to Paris, and we can work on it. :)

Nicolas Vervelle wrote:

>[EMAIL PROTECTED] wrote:
>  
>
>>De: Bob Hanson <[EMAIL PROTECTED]>
>>
>>  
>>    
>>
>>>The more I think about it, the more I think we have to do whatever 
>>>Daylight says we do. They must have thought about this. Do you want to 
>>>ask them about isotopes? My understanding -- maybe a place to start -- 
>>>is to ask if the following is correct:
>>>    
>>>      
>>>
>>I will check their website and their "specification" to see if they have 
>>answered this situation.
>>
>>
>>  
>>    
>>
>>>[C] matches any isotope of carbon, explicitly indicated or not.
>>>    
>>>      
>>>
>>For this one above, I am 100% sure, [C] means any isotope. 
>>
>>
>>  
>>    
>>
>>>[12C] matches only explicitly labeled carbon-12.
>>>    
>>>      
>>>
>>This one is the problem and I am not sure we will have an answer.
>>  
>>    
>>
>
>I have browsed daylight website, and I think that they have never 
>thought of using things like [12C] on molecule with unspecified isotope 
>numbers.
>I believe they designed this for use case where the search pattern is 
>not more defined than the molecule.
>
>BTW, some time in the future, we should work on replacing the 
>SmilesParser by a SmartsParser (or add a SmartsParser)
>Smiles is not really designed for pattern matching, it's rather Smarts, 
>but Smarts is a lot more complex to parse and then do the pattern matching.
>
>I think doing the pattern matching with SMARTS would need a good deal of 
>work
>
>Nico
>
>
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